White people who are bothered by this on some political level might at the very least be a passive part of the problem. Re: "forced participation," I would hardly classify public uproar over things like police abuses to be on the same level as erecting a confederate monument in a prominent location in response to desegregation and the civil rights movement, then having the gall to claim it's for "celebrating heritage" or whatever.
Did you see that social media post of that one woman shutting down her grandson's confederate post? To the effect of "you're Scotch-Irish and our family wasn't even here during the civil war." Ouch.
Anyway, the biggest issues are on the technical level:
1) Painted surfaces can get slick, but wear to traffic should mitigate this.
2) Lane markings are obfuscated.
If this were to become a permanent feature,
etc.
This is an example of how the whole protest came to nought. There were no major reforms to policing in the U.S. but instead just a bunch of cultural wins for African Americans. And those cultural wins won't go far in helping low income blacks.
Also probably a lot of coronavirus.